[PATCH v1 12/17] pinctrl: cy8c95x0: Implement ->pin_dbg_show()

Andy Shevchenko
2022-09-02T18:36:42Z

The introduced callback ->pin_dbg_show() is useful for debugging.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/pinctrl/pinctrl-cy8c95x0.c | 40 ++++++++++++++++++++++++------
1 file changed, 32 insertions(+), 8 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-cy8c95x0.c b/drivers/pinctrl/pinctrl-cy8c95x0.c
index 6fe442b44cab..ea81b5ae27a6 100644
--- a/drivers/pinctrl/pinctrl-cy8c95x0.c
+++ b/drivers/pinctrl/pinctrl-cy8c95x0.c
@@ -1010,25 +1010,49 @@ static int cy8c95x0_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
return 0;
}

+static const char *cy8c95x0_get_fname(unsigned int selector)
+{
+ if (selector == 0)
+ return "gpio";
+ else
+ return "pwm";
+}
+
+static void cy8c95x0_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
+ unsigned int pin)
+{
+ struct cy8c95x0_pinctrl *chip = pinctrl_dev_get_drvdata(pctldev);
+ DECLARE_BITMAP(mask, MAX_LINE);
+ DECLARE_BITMAP(pwm, MAX_LINE);
+
+ bitmap_zero(mask, MAX_LINE);
+ __set_bit(pin, mask);
+
+ if (cy8c95x0_read_regs_mask(chip, CY8C95X0_PWMSEL, pwm, mask)) {
+ seq_puts(s, "not available");
+ return;
+ }
+
+ seq_printf(s, "MODE:%s", cy8c95x0_get_fname(test_bit(pin, pwm)));
+}
+
static const struct pinctrl_ops cy8c95x0_pinctrl_ops = {
.get_groups_count = cy8c95x0_pinctrl_get_groups_count,
.get_group_name = cy8c95x0_pinctrl_get_group_name,
.get_group_pins = cy8c95x0_pinctrl_get_group_pins,
.dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
.dt_free_map = pinconf_generic_dt_free_map,
+ .pin_dbg_show = cy8c95x0_pin_dbg_show,
};

-static int cy8c95x0_get_functions_count(struct pinctrl_dev *pctldev)
+static const char *cy8c95x0_get_functions_name(struct pinctrl_dev *pctldev, unsigned int selector)
{
- return 2;
+ return cy8c95x0_get_fname(selector);
}

-static const char *cy8c95x0_get_fname(struct pinctrl_dev *pctldev, unsigned int selector)
+static int cy8c95x0_get_functions_count(struct pinctrl_dev *pctldev)
{
- if (selector == 0)
- return "gpio";
- else
- return "pwm";
+ return 2;
}

static int cy8c95x0_get_groups(struct pinctrl_dev *pctldev, unsigned int selector,
@@ -1077,7 +1101,7 @@ static int cy8c95x0_set_mux(struct pinctrl_dev *pctldev, unsigned int selector,

static const struct pinmux_ops cy8c95x0_pmxops = {
.get_functions_count = cy8c95x0_get_functions_count,
- .get_function_name = cy8c95x0_get_fname,
+ .get_function_name = cy8c95x0_get_functions_name,
.get_function_groups = cy8c95x0_get_groups,
.set_mux = cy8c95x0_set_mux,
.strict = true,
--
2.35.1